CN108007774A - The apparatus and method for measuring flaky material Young's modulus - Google Patents

The apparatus and method for measuring flaky material Young's modulus Download PDF

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Publication number
CN108007774A
CN108007774A CN201711125390.5A CN201711125390A CN108007774A CN 108007774 A CN108007774 A CN 108007774A CN 201711125390 A CN201711125390 A CN 201711125390A CN 108007774 A CN108007774 A CN 108007774A
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China
Prior art keywords
pressure head
test sample
sample
lifting device
modulus
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CN201711125390.5A
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Inventor
李志勇
李青
郑权
王丽红
闫冬成
李俊锋
张广涛
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Dongxu Optoelectronic Technology Co Ltd
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Tunghsu Group Co Ltd
Tunghsu Technology Group Co Ltd
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Priority to CN201711125390.5A priority Critical patent/CN108007774A/en
Publication of CN108007774A publication Critical patent/CN108007774A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0019Compressive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0069Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075Strain-stress relations or elastic constants
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/026Specifications of the specimen
    • G01N2203/0262Shape of the specimen
    • G01N2203/0278Thin specimens
    • G01N2203/0282Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

This disclosure relates to a kind of apparatus and method for measuring flaky material Young's modulus, the device include:Base (1), sample stage (2) on the base (1), be arranged on the base (1) both sides lifting device (3) and can be by pressure head (4) that the lifting device (3) move up and down, there is adjustable two sample holders (5) in position on the sample stage (2), the support cylinder (6) for being useful for carrying the test sample is each fixedly mounted on described two sample holders (5), the pressure head (4) can be directed at test sample, there is displacement sensor (7) and the first mechanics sensor (8) on the pressure head (4), the second mechanics sensor (13) is installed at least one support cylinder (6).The Young's modulus of flaky material can be accurately measured by the device.

Description

The apparatus and method for measuring flaky material Young's modulus
Technical field
A kind of this disclosure relates to apparatus and method for measuring flaky material Young's modulus.
Background technology
With the continuous development of science and technology, people show that the requirement of product is higher and higher to mobile phone, notebook, computer etc., especially It is that requirement display is more and more thinner, this just needs the bending strength of produced glass higher and higher.
Young's modulus is to describe the physical quantity of solid material resistance deformability, the size mark of Young's modulus material Rigidity, Young's modulus is bigger, is less susceptible to deform upon.Therefore, the Young's modulus for accurately measuring different samples seems and is still It is important.At present, there is the problem of measurement is inaccurate, human error is larger in the method for testing sheet plate Young's modulus, it is impossible to full The requirement of the current production technology of foot.
The content of the invention
The purpose of the disclosure is to provide a kind of apparatus and method for measuring flaky material Young's modulus, can by the device The accurately Young's modulus of measurement flaky material.
To achieve these goals, disclosure first aspect:A kind of device for measuring flaky material Young's modulus is provided, should Device includes:Base, the sample stage on the base, is arranged on the lifting device of the base both sides and can pass through The pressure head that the lifting device moves up and down, has adjustable two sample holders in position on the sample stage, described two The support cylinder for being useful for carrying the test sample is each fixedly mounted on sample holder, the pressure head can be directed at test specimens Product, have displacement sensor and the first mechanics sensor on the pressure head, second are provided with least one support cylinder Mechanics sensor.
Alternatively, the upper support frame that can be moved up and down by the lifting device, institute are installed between the lifting device Pressure head is stated to be fixedly mounted on the upper support frame.
Alternatively, institute's displacement sensors are fixedly mounted on the upper end of the upper support frame, first mechanics sensor The lower end of the upper support frame is fixedly mounted on, the lower end of first mechanics sensor is fixedly connected with pressure head carrying, described Pressure head is fixedly mounted in the pressure head carrying.
Alternatively, the lifting device has upper limit and lower limit, for limiting the upper support frame in the upper limit Moved between position and lower limit.
Alternatively, the lifting device is electric screw lifter.
Alternatively, the lifting speed precision of the lifting device is within ± 0.5%.
Alternatively, there is the slide for being used for adjusting the support sample holder position, the sample branch on the sample stage Frame is fixed on the slide by screw element.
Alternatively, the measurement accuracy of institute's displacement sensors is more than 0.01mm.
Alternatively, the measurement accuracy of first mechanics sensor and the second mechanics sensor is more than 0.1N.
Alternatively, which further includes the transparent protective shield being set in outside the base and lifting device.
Disclosure second aspect:A kind of device using described in disclosure first aspect is provided and measures flaky material Young mould The method of amount, this method include:
A, prepare with the sheet test sample to be measured that thickness is a, width is b;
B, the test sample in step a is placed on two support cylinders, is adjusted by the lifting device The height of the pressure head, makes the pressure head be contacted with the test sample, makes the lifting device be fixed on present level simultaneously Institute's displacement sensors and the first mechanics sensor are returned to zero;
C, make the pressure head move down to crush the test sample by the lifting device, crush moment pass through it is described What displacement sensor and the first mechanics sensor obtained the pressure head moves down distance lambda and stress F, and the survey is calculated according to formula (I) The Young's modulus E of test agent:
Wherein, l represents the distance between two support cylinders.
Alternatively, in step b, in step b, it is no more than described first to adjust the distance between two described support cylinders 6 The test sample, is then placed on two support cylinders 6 by the 4/5 of test sample length again.
Alternatively, this method further includes:In step b, the test sample is placed on two support cylinders, it is described Second mechanics sensor obtains initial reading, then adjusts the height of the pressure head so that the pressure head by the lifting device Close to the test sample, when the reading of the second mechanics sensor changes, the pressure head and the test sample are represented Contact.
Alternatively, in step c, when making the pressure head move down to crush the test sample by the lifting device, institute The decrease speed for stating lifting device is arranged to 0.1-5 mm/seconds.
Alternatively, this method further includes:First the standard sample of known Young's modulus is detected using described device, with Described device is calibrated, described device is then reused and the sheet test sample to be measured is detected.
Through the above technical solutions, the disclosure adds mechanics sensor and displacement sensor in a device, when test, passes through The sensor can show that flaky material is being crushed physical quantity caused by moment exactly immediately, and then accurately calculate The Young's modulus of test sample, accuracy is high, and detection range is wide.The apparatus structure of the disclosure is simple, and method is easy to operate, test As a result it is reliable and stable.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool Body embodiment is used to explain the disclosure together, but does not form the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the structure diagram of the device for the measure flaky material Young's modulus that the disclosure provides.
Description of reference numerals
1 base, 2 sample stage
3 lifting device, 4 pressure head
5 sample holders 6 support cylinder
7 displacement sensor, 8 first mechanics sensor
9 upper support frame, 10 pressure head carries
11 upper limit, 12 lower limit
13 second mechanics sensors
Embodiment
The embodiment of the disclosure is described in detail below in conjunction with attached drawing.It should be appreciated that this place is retouched The embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Disclosure first aspect:A kind of device for measuring flaky material Young's modulus is provided.With reference to figure 1, which includes: Base 1, the sample stage 2 on the base 1, be arranged on 1 both sides of base lifting device 3 and can be by described The pressure head 4 that lifting device 3 moves up and down, has adjustable two sample holders 5 in position on the sample stage 2, described two The support cylinder 6 for being useful for carrying the test sample is each fixedly mounted on sample holder 5, the pressure head 4 can be directed at survey Test agent, has 7 and first mechanics sensor 8 of displacement sensor on the pressure head 4, pacifies at least one support cylinder 6 Equipped with the second mechanics sensor 13.
According to the disclosure, 7 and first mechanics sensor 8 of displacement sensor on the pressure head 4 can be respectively to pressure head 4 The change of moving displacement and stress measures, so as to directly obtain the physics calculated needed for sample Young's modulus Amount.
According to a kind of optional embodiment of the disclosure, can be provided between the lifting device 3 can be by described The upper support frame 9 that lifting device 3 moves up and down, the pressure head 4 are fixedly mounted on the upper support frame 9.The upper support frame 9 Can be horizontal be installed between two lifting devices 3, is put down with the pressure head 4 for ensuring mounted thereto in vertical direction Quietly move.
Further, institute's displacement sensors 7 can be fixedly mounted on the upper end of the upper support frame 9, first power The lower end of the upper support frame 9 can be fixedly mounted on by learning sensor 8.The lower end of first mechanics sensor 8 can be fixed Pressure head carrying 10 is connected with, the pressure head 4 is fixedly mounted in the pressure head carrying 10.In this way, institute's displacement sensors 7 and One mechanics sensor 8 is stably mounted on upper support frame 9, it is ensured that the accuracy of testing result.
According to the disclosure, the lifting device 3 can have upper limit 11 and lower limit 12, for limiting the upper support Frame 9 moves between the upper limit 11 and lower limit 12.Upper support frame 9 is moved into contact with the upper limit by the lifting device 3 When position 11 or lower limit 12, it will stop it and further move up or move down, so as to avoid the fluctuation range of upper support frame 9 The excessive damage caused to device or sample, realizes the protective effect to device and sample.The upper limit and The implication of lower limit is known to those skilled in the art, its position can be configured or adjust according to actual needs.
According to the disclosure, the lifting device 3 can be that this area is conventional, can be with dynamic head vertical as long as meeting The purpose that direction is steadily moved.According to a kind of optional embodiment of the disclosure, the lifting device 3 can be electronic spiral shell Lifter is revolved, is, for example, the electric screw lifter of the model LTG of De Keer productions.Preferably, the liter of the lifting device 3 Reduction of speed degree can adjust, and the lifting speed precision of the lifting device 3 can be that within ± 0.5%, can so test The lifting speed is adjusted to suitable size during sample, avoid speed too big or it is too small caused by test error, further Ensure measurement accuracy.
According to the disclosure, the distance between two sample holders 5 on the sample stage 2 are also to be used to calculate test sample The physical quantity of Young's modulus, therefore, two 5 positions of sample holder on the sample stage 2 are adjustably set, and are conducive in reality Border is adjusted the distance between two sample holders 5 according to the property of test sample when testing.According to one kind of the disclosure Optional embodiment, can have the slide for being used for adjusting 5 position of the support sample holder on the sample stage 2, described Sample holder 5 is fixed on the slide by screw element.The second mechanics sensor 13 installed on the support cylinder 6 is used for Ensure that the test sample that the first mechanics sensor 8 is recorded has correctly starting number in the stress change for being oppressed moment generation According to its concrete function in determination sample will further illustrate in the description used below device.
According to the disclosure, in order to further improve measurement accuracy, the measurement accuracy of institute's displacement sensors 7 can be More than 0.01mm.Institute's displacement sensors 7 can be conventional linear displacement transducer, be, for example, the model of the bright production of rice The displacement sensor of MTL2.The measurement accuracy of first mechanics sensor, 8 and second mechanics sensor 13 can be 0.1N with On, and can be commonly used in the art, it is, for example, the power of the model BSS-ESH of Transeell Technology productions Learn sensor.
According to the disclosure, which can also include being set in transparency protected outside the base 1 and lifting device 3 Cover, can so provide the environment of closing when testing sample, so as to avoid the interference in the external world.
The apparatus structure that the disclosure provides is simple, can be drawn exactly immediately by mechanics sensor and displacement sensor Flaky material is being crushed physical quantity caused by moment, and then the accurate Young's modulus for calculating test sample, and accuracy is high, Detection range is wide.
Disclosure second aspect:A kind of device using described in disclosure first aspect is provided and measures flaky material Young mould The method of amount, this method include:
A, prepare with the sheet test sample to be measured that thickness is a, width is b;
B, the test sample in step a is placed on two support cylinders 6, is adjusted by the lifting device 3 The height of the pressure head 4 is saved, the pressure head 4 is contacted with the test sample, makes the lifting device 3 be fixed on present level Above and by institute's displacement sensors 7 and the first mechanics sensor 8 return to zero;
C, make the pressure head 4 move down to crush the test sample by the lifting device 3, pass through institute crushing moment What 7 and first mechanics sensor 8 of displacement sensors obtained the pressure head 4 moves down distance lambda and stress F, and institute is calculated according to formula (I) State the Young's modulus E of test sample:
Wherein, l represents the distance between two support cylinders 6.
According to the disclosure, in step a, the sheet test sample to be measured generally can be on plate material to large-sized Material is cut to obtain, and the burr for removing surrounding notch is should be noted that when cutting, it is ensured that test sample is smooth, it is impossible to have cylindrical shape Or coniform or other shapes any fold, it otherwise will severely impact the accuracy of test.The sheet test specimens to be measured The thickness of product refers to the size for being placed on its in the vertical direction when on two support cylinders 6, and width refers to be put On the perpendicular direction of it is formed with two support cylinders 6 in the horizontal plane when on two support cylinders 6 straight line Size.
According to the disclosure, in step b, it is no more than the test first to adjust the distance between two described support cylinders 6 The test sample, is then placed on two support cylinders 6 by the 4/5 of sample length again.The placement location of the test sample It should be and be centrally located on two support cylinders 6, and ensure that contact point of the pressure head 4 when being in contact with it is placed in the middle.By the test It is after sample is placed on two support cylinders 6, the transparent protective shield cover of device is good, it is ensured that measurement carries out under sealing condition.
According to disclosed method, distance and stress are moved down crush moment by measuring sheet test sample to be measured, The Young's modulus of the sample can be calculated according to formula, therefore, the test accuracy of above-mentioned two physical quantity is to sample Young The result of calculation of modulus is particularly critical.In order to ensure according to obtaining institute's displacement sensors 7 and the first mechanics sensor 8 The move down distance lambda and stress F of pressure head 4 have objective and accurate property, and this method further includes:In step b, the test sample is placed in On two support cylinders 6, at this moment, second mechanics sensor 13 can obtain initial reading, then pass through the liter Drop equipment 3 adjusts the height of the pressure head 4 so that the pressure head 4 is close to the test sample, when the second mechanics sensor 13 When reading changes, represent the pressure head 4 and contacted with the test sample.In such manner, it is possible to accurately obtain pressure head and test specimens The starting critical point of product contact, it is ensured that the reliability for moving down distance and stress measured by step c.
According to the disclosure, in step c, the pressure head 4 is made to move down to crush the test sample by the lifting device 3 When, it is necessary to adjusting the decrease speed of the lifting device 3 in suitable scope, it is too big or too small cause survey to avoid speed Try error.Preferably, the decrease speed of the lifting device 3 is arranged to 0.1-5 mm/seconds.
According to the disclosure, in order to further improve the accuracy of measurement result, this method can also include:First using described Device is detected the standard sample of known Young's modulus, to be calibrated to described device, then reuses described device The sheet test sample to be measured is detected.The calibration refers to, by using Young's modulus known to device detection Standard sample, the data obtained and known Young's modulus are contrasted, further according to the various variable of comparing result regulating device Factor, is repeated detection, consistent with given data until device is adjusted to testing result, you can thinks the device by school It is accurate.Whether the variable factor of device be for example aligned including pressure head with test sample, is held round for two branch of bearing test sample Whether the height of column is consistent etc..By calibration, influence of the various variable factors to test result can be farthest reduced, Further ensure that the reliability of measurement result.
Disclosed method is easy to operate, and test result is reliable and stable.
The disclosure is further illustrated by the following examples, but does not therefore limit the disclosure.
Embodiment 1
The present embodiment is used to illustrate using detection of the apparatus and method of the disclosure to known Young's modulus sample.
The Young's modulus that C companies are produced is 73.6 × 103It is 65mm that the glass material of MPa, which is cut into width, and length is 150mm, shape are the sheet test sample to be measured of rectangle, and cutting accuracy is ± 0.5mm, the flatness of test sample upper and lower surface It is good.Measure the thickness of cut test sample with linear thickness measuring instrument, and with its width of vernier caliper measurement, obtain it Thickness a is 0.503mm, and width b is 65.4mm.
Above-mentioned test sample is detected using device as shown in Figure 1.In the device, lifting device 3 is De Keer The electric screw lifter of the model LTG of production, its lifting speed precision are within ± 0.5%;Displacement sensor 7 is meter Lang The displacement sensor of the model MTL2 of production, measurement accuracy 0.001mm;First mechanics sensor 8 and the second mechanics sensing Device 13 for Transeell Technology production model BSS-ESH mechanics sensor, measurement accuracy 0.01N.
The distance between two support cylinders 6 l is adjusted to 110mm, above-mentioned test sample is then placed in support cylinder 6 On, sample is placed centrally, by supporting the second mechanics sensor 13 on cylinder 6 to read the number of degrees after placing test sample, so It is afterwards that transparent protective shield cover is good.
The decrease speed for setting lifting device 3 is 0.1mm/s, and the height of pressure head 4 is adjusted by lifting device 3, makes pressure head 4 Move down, when the number of degrees of the second mechanics sensor 13 change, stop the operation of lifting device 3, at this time pressure head test specimens Product contact, and make lifting device 3 be fixed on present level and 7 and first mechanics sensor 8 of displacement sensor returns to zero.
Make pressure head 4 move down to crush test sample by lifting device 3, pass through displacement sensor 7 and crushing moment The distance lambda that moves down that one mechanics sensor 8 obtains pressure head 4 is 7.08mm, and stress F is 13.01N, and the test is calculated according to formula (I) The Young's modulus E of sample is 73.46 × 103Mpa。
Testing result is compared with known Young's modulus, error 0.19%, it was demonstrated that disclosed method has higher Measurement accuracy.
Embodiment 2
The present embodiment is used to illustrate using detection of the apparatus and method of the disclosure to unknown Young's modulus sample.
According to the method for embodiment 1, detection thickness a is 0.503mm, and width b is the sheet test sample to be measured of 65.1mm, It is 1.85mm crushing moment and measuring the distance lambda that moves down of pressure head 4, stress F is 20.80N.The test specimens are calculated according to formula (I) The Young's modulus E of product is 451.569 × 103Mpa。
Embodiment 3
The present embodiment is used to illustrate using detection of the apparatus and method of the disclosure to unknown Young's modulus sample.
According to the method for embodiment 1, detection thickness a is 0.501mm, and width b is the sheet test sample to be measured of 65.3mm, It is 15.28mm crushing moment and measuring the distance lambda that moves down of pressure head 4, stress F is 3.35N.The test specimens are calculated according to formula (I) The Young's modulus E of product is 8.884 × 103Mpa。
The result of embodiment 2-3 can illustrate, can be to Young's modulus in larger model using the apparatus and method of the disclosure Sample in enclosing is tested, and test result is accurately and reliably.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the disclosure to it is various can The combination of energy no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought, it should equally be considered as disclosure disclosure of that.

Claims (15)

1. a kind of device for measuring flaky material Young's modulus, it is characterised in that the device includes:Base (1), installed in described Sample stage (2) on base (1), be arranged on the base (1) both sides lifting device (3) and can be by the lifting device (3) pressure head (4) moved up and down, has adjustable two sample holders (5) in position on the sample stage (2), described two The support cylinder (6) for being useful for carrying the test sample is each fixedly mounted on sample holder (5), the pressure head (4) can Test sample is directed at, there is displacement sensor (7) and the first mechanics sensor (8), at least one branch on the pressure head (4) Hold round and the second mechanics sensor (13) is installed on column (6).
2. device according to claim 1, it is characterised in that being provided between the lifting device (3) can be by described The upper support frame (9) that lifting device (3) moves up and down, the pressure head (4) are fixedly mounted on the upper support frame (9).
3. the apparatus of claim 2, it is characterised in that institute's displacement sensors (7) are fixedly mounted on the upper branch The upper end of support (9), first mechanics sensor (8) are fixedly mounted on the lower end of the upper support frame (9), first power The lower end for learning sensor (8) is fixedly connected with pressure head carrying (10), and the pressure head (4) is fixedly mounted on the pressure head carrying (10) On.
4. the apparatus of claim 2, it is characterised in that the lifting device (3) has upper limit (11) and lower limit Position (12), is moved for limiting the upper support frame (9) between the upper limit (11) and lower limit (12).
5. device according to claim 1, it is characterised in that the lifting device (3) is electric screw lifter.
6. device according to claim 1, it is characterised in that the lifting speed precision of the lifting device (3) for ± Within 0.5%.
7. device according to claim 1, it is characterised in that have on the sample stage (2) and be used to adjust the support The slide of sample holder (5) position, the sample holder (5) are fixed on the slide by screw element.
8. device according to claim 1, it is characterised in that the measurement accuracy of institute's displacement sensors (7) is 0.01mm More than.
9. device according to claim 1, it is characterised in that first mechanics sensor (8) and the second mechanics sensing The measurement accuracy of device (13) is more than 0.1N.
10. device according to claim 1, it is characterised in that the device, which further includes, is set in the base (1) and lifting The exterior transparent protective shield of equipment (3).
11. a kind of method that usage right requires the device measure flaky material Young's modulus described in any one in 1-10, its It is characterized in that, this method includes:
A, prepare with the sheet test sample to be measured that thickness is a, width is b;
B, the test sample in step a is placed on two support cylinders (6), is adjusted by the lifting device (3) The height of the pressure head (4) is saved, the pressure head (4) is contacted with the test sample, makes the lifting device (3) be fixed on and works as Return to zero in preceding height and by institute's displacement sensors (7) and the first mechanics sensor (8);
C, make the pressure head (4) move down to crush the test sample by the lifting device (3), pass through institute crushing moment What displacement sensors (7) and the first mechanics sensor (8) obtained the pressure head (4) moves down distance lambda and stress F, according to formula (I) Calculate the Young's modulus E of the test sample:
Wherein, l represents the distance between two support cylinders (6).
12. the method according to claim 11, wherein, in step b, between the first adjusting two support cylinders (6) Distance is no more than the 4/5 of the test sample length, and then the test sample is placed on two support cylinders (6) again.
13. according to the method for claim 11, wherein, this method further includes:In step b, the test sample is placed in On two support cylinders (6), second mechanics sensor (13) obtains initial reading, then passes through the lifting device (3) height of the pressure head (4) is adjusted so that the pressure head (4) is close to the test sample, when the second mechanics sensor (13) Reading when changing, represent the pressure head (4) and contacted with the test sample.
14. according to the method for claim 11, wherein, in step c, the pressure head (4) is made by the lifting device (3) When moving down to crush the test sample, the decrease speed of the lifting device (3) is arranged to 0.1-5 mm/seconds.
15. according to the method for claim 11, wherein, this method further includes:First using described device to known Young mould The standard sample of amount is detected, and to be calibrated to described device, then reuses described device and the sheet to be measured is surveyed Test agent is detected.
CN201711125390.5A 2017-11-14 2017-11-14 The apparatus and method for measuring flaky material Young's modulus Pending CN108007774A (en)

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